BTH60801EPLXUMA1 - 80mΩ 48V Smart High-Side Switch | Infineon
MPN: BTH60801EPLXUMA1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.42 | $3.42 |
| 10 | $3.08 | $30.80 |
| 100 | $2.61 | $261.00 |
| 500 | $2.18 | $1,090.00 |
| 1,000 | $1.74 | $1,740.00 |
BTH60801EPLXUMA1 Overview
A high-side switch is a power distribution topology where the switch sits between the supply rail and the load, enabling ground-referenced loads, inrush-current control, and fault isolation. Within the broader taxonomy, this device belongs to the smart high-side switch family, itself a subcategory of power distribution switches and MOSFET driver ICs used in automotive body electronics and 48 V board-net systems.
Key features include an 80 mΩ typical on-state resistance (RDS(on)), a wide operating voltage range of 4 V to 54 V supporting 48 V board nets, and built-in diagnostic feedback through a current sense (IS) pin. The device also offers overtemperature, overvoltage, and undervoltage protection with autorestart behavior, plus active-high and active-low input logic for flexible microcontroller interfacing.
The integrated charge pump drives the gate of the N-channel MOSFET above the battery rail, achieving true low-loss high-side switching. The exposed pad on the PG-TSDSO-14 package reduces thermal resistance, enabling continuous load currents up to the rated 2.5 A without external heatsinking in typical automotive ambient conditions.
Typical applications include 48 V automotive lighting control, HVAC blower and resistor drives, auxiliary power distribution modules, and zone-ECU load management. The 48 V board-net compatibility makes it particularly suited to mild-hybrid and 48 V-only vehicle subsystems where 12 V legacy switches are inadequate.
When designing with this device, ensure the PCB copper pour under the exposed pad is maximized to keep junction temperature within safe limits under sustained 2.5 A loads. The IS pin must be connected to a microcontroller ADC through an external resistor divider matched to the ADC reference voltage.
This page synthesizes distributor pricing, drop-in alternative cross-references, and practical 48 V high-side switch design guidance not found in the manufacturer datasheet alone.
Drop-in alternatives for BTH60801EPLXUMA1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with BTH60801EPLXUMA1 (same form factor and footprint) — differing in Package, Number of Channels, On-State Resistance (RDS(on)), Operating Temperature Range, Operating Voltage Range.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
BTS70402EPGXUMA1
✅ Drop-In✓ In Stock
$3.18 / Unit
View Datasheet →BTS710336ESAXUMA1
✅ Drop-In✓ In Stock
$2.45 / Unit
View Datasheet →BTS51202EKAXUMA1
✅ Drop-In✓ In Stock
$1.68 / Unit
View Datasheet →BTH60801EPLXUMA1 Maximum Ratings & Electrical Characteristics
| Product Type | Smart High-Side Power Switch |
| Number of Channels | 1 |
| Topology | High-Side N-Channel MOSFET with Charge Pump |
| On-State Resistance (RDS(on)) | 80 mΩ (typical) |
| Continuous Load Current | 2.5 A |
| Operating Voltage Range | 4 V to 54 V |
| Nominal Board Net | 48 V (PROFET+ 48V family) |
| Current Limitation | Adjustable |
| Diagnostic Output | Current Sense (IS) pin |
| Input Logic | Active High and Active Low |
| Protection Features | Overtemperature, Overvoltage, Undervoltage, Short Circuit |
| Package | PG-TSDSO-14 (exposed pad) |
| Operating Temperature Range | -40 °C to +150 °C (Tj) |
| Mounting Type | Surface Mount |
| Automotive Qualification | AEC-Q100 qualified |
| RoHS Status | Compliant |
BTH60801EPLXUMA1 Pin Configuration
| Pin 1 | OUT — Power output to load |
| Pin 2 | OUT — Power output to load |
| Pin 3 | GND — Ground reference |
| Pin 4 | IS — Current sense diagnostic output |
| Pin 5 | INH — Inhibit input (active high) |
| Pin 6 | INL — Input logic (active low) |
| Pin 7 | VS — Supply voltage (battery rail) |
| Pin 8 | VS — Supply voltage (battery rail) |
| Pin 9 | NC — Not connected (per datasheet) |
| Pin 10 | NC — Not connected (per datasheet) |
| Pin 11 | NC — Not connected (per datasheet) |
| Pin 12 | NC — Not connected (per datasheet) |
| Pin 13 | NC — Not connected (per datasheet) |
| Pin 14 | EP — Exposed pad (thermal pad, connect to copper pour) |
Typical Applications
BTH60801EPLXUMA1 is suitable for 6 applications: 48V Automotive Lighting Control, 48V HVAC Blower Motor Drive, 48V Auxiliary Power Distribution Module, Industrial 48V Solenoid and Valve Control, 48V Battery Management System (BMS) Load Disconnect, 48V eBike and E-Mobility Drive Systems.
48V Automotive Lighting Control
The BTH60801EPLXUMA1 is well-suited for driving 48 V automotive LED headlamps, tail lamps, and daytime running lights via its high-side switch topology and 54 V maximum operating voltage. The 80 mΩ RDS(on) keeps conduction losses below 0.5 W at the typical 2 A LED string current, reducing thermal stress on the PCB and eliminating the need for an external heatsink. The integrated current-sense (IS) pin enables open-load and short-to-ground diagnostics, which are mandatory for ASIL-B-rated lighting ECUs. Place the device between the 48 V battery rail and the LED string anode, with the IS pin feeding an MCU ADC through a sense resistor.
Recommended
48V HVAC Blower Motor Drive
HVAC blower motors in 48 V mild-hybrid vehicles require high-side switching with inrush-current management and stall protection. The BTH60801EPLXUMA1's adjustable current limitation allows the MCU to set a startup current limit 2-3x above the steady-state rating, protecting the motor windings from locked-rotor inrush while preventing nuisance trips. The exposed-pad PG-TSDSO-14 package keeps the junction temperature within safe limits during continuous 2.5 A operation. The IS pin provides real-time load-current feedback for closed-loop blower speed control without requiring a separate shunt resistor.
Recommended
48V Auxiliary Power Distribution Module
Zone-ECU and power-distribution-box architectures in 48 V vehicles use multiple high-side switches to control auxiliary loads such as coolant pumps, oil pumps, and DC-DC converter enable lines. The BTH60801EPLXUMA1 provides per-channel protection and diagnostics that simplify the ASIL decomposition across the zone ECU. Its 54 V rating tolerates 48 V load-dump transients up to the automotive ISO 7637-2 pulse profile. Use the device's IS pin output for load-presence detection and the active-high/active-low logic inputs to support both 3.3 V and 5 V MCU GPIO standards.
Recommended
Industrial 48V Solenoid and Valve Control
Industrial process-control systems operating from 48 V bus voltages use high-side switches to drive solenoid valves, pneumatic actuators, and hydraulic valves. The BTH60801EPLXUMA1's 4 V minimum operating voltage supports cold-start brownout conditions common in battery-backed industrial systems. The integrated short-circuit and overtemperature protection eliminates the need for discrete fuses and thermal cutouts. Connect the IS pin to an industrial PLC analog input for valve-position feedback and stuck-valve diagnostics, replacing traditional limit-switch wiring with software-detected state.
Recommended
48V Battery Management System (BMS) Load Disconnect
In 48 V mild-hybrid BMS architectures, the BTH60801EPLXUMA1 can serve as a low-side-of-cost load disconnect switch for non-critical loads during deep-discharge protection events. Its 80 mΩ RDS(on) at 2.5 A adds only 200 mV of drop, preserving usable battery capacity. The IS pin's analog current sense enables coulomb-counting verification against the main BMS shunt. The autorestart behavior on fault clearing simplifies the recovery sequence after a transient overcurrent event without requiring MCU intervention.
Recommended
48V eBike and E-Mobility Drive Systems
Light-electric-vehicle (LEV) platforms including 48 V e-bikes, electric scooters, and AGV battery systems use high-side switches for headlamp, horn, and auxiliary-load control. The BTH60801EPLXUMA1's wide 4 V to 54 V operating range supports packs ranging from 13S Li-ion (48 V nominal) through low-battery cutoff. The exposed-pad package enables direct PCB mounting in space-constrained handlebar-mounted ECUs. Use the current-sense pin for turn-signal load monitoring and brake-light current verification to support functional-safety requirements in EU type-approval markets.
Recommended
Recommended Products Summary
Engineering reference data for BTH60801EPLXUMA1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | BTS70402EPGXUMA1 | BTS710336ESAXUMA1 | BTS51202EKAXUMA1 |
|---|---|---|---|---|
| Package | PG-TSDSO-14 (exposed pad) | PG-TSDSO-14 (exposed pad) - same | PG-TSDSO-14 - same family | PG-DSO-14 - same family |
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| On-State Resistance (RDS(on)) | 80 mΩ | 50 mΩ | 33 mΩ | 20 mΩ |
| Number of Channels | 1 | 2 | 4 | 2 |
| Operating Voltage Range | 4 V to 54 V | 4 V to 28 V | 4 V to 28 V | 4 V to 28 V |
| Nominal Board Net | 48 V | 12 V / 24 V | 12 V / 24 V | 12 V |
| Continuous Load Current | 2.5 A | 2x 2.5 A | 4x 1.5 A | 2x 3 A |
| Current Limitation | Adjustable | Adjustable | Adjustable | Adjustable |
Key Differentiators
- 48 V board-net native voltage rating (vs BTS51202EKAXUMA1)
- Single-channel 80 mΩ optimized RDS(on) (vs BTS70402EPGXUMA1)
- Adjustable current limitation (vs BTS710336ESAXUMA1)
Design Notes
Estimated: At 48 V supply and 2 A continuous load current, the BTH60801EPLXUMA1 dissipates approximately P = I²R = 2² × 0.08 = 0.32 W. The PG-TSDSO-14 exposed pad reduces junction-to-PCB thermal resistance to ~30 K/W with a properly designed 1 oz copper pour of at least 1 cm² on top and bottom layers. For sustained 2.5 A operation near 105 °C ambient, additional PCB copper area or thermal vias to inner planes are recommended to maintain junction temperature below 150 °C.
Place input and output capacitors (typically 100 nF ceramic) as close as possible to the VS and OUT pins to minimize switching transients and EMI. The exposed pad must be soldered to a continuous copper pour connected to ground for thermal performance. Avoid routing sensitive analog signal traces (IS pin output) directly beneath the power pins to prevent capacitive coupling of switching noise into the current-sense feedback path.
Do not exceed the absolute maximum VS supply voltage of 54 V during load-dump transients - external TVS clamping is recommended for harsh automotive environments. The IS pin output is a current source; do NOT connect it directly to a voltage ADC input without an external sense resistor to ground. Ensure the INH and INL logic inputs are driven to valid logic levels at all times; floating inputs may cause unintended turn-on or turn-off events.
Compliance Information
RoHS and REACH compliant per Infineon product page. AEC-Q100 qualified for automotive applications. Lead-free and halogen-free per PG-TSDSO-14 package materials declaration.
